ASTM A541/A541M-05(2020)
(Specification)Standard Specification for Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components
Standard Specification for Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components
ABSTRACT
This specification covers quenched and tempered carbon and alloy steel forgings for pressure vessel components. Heat and product analyses shall be performed to evaluate material conformance with chemical composition requirements. Tension and Charpy V-notch tests shall also be carried out to assess material conformance with mechanical property requirements such as, tensile strength, yield strength, elongation, reduction of area, and Charpy value. Sampling of test specimens for mechanical examination shall be done by either one of four methods specified by the purchaser. Repair welding may also be made at the option of the purchaser.
SCOPE
1.1 This specification2 covers requirements for quenched and tempered carbon and alloy steel forgings for pressure vessel components.
1.2 All grades are considered weldable under proper conditions. Welding technique is of fundamental importance, and it is presupposed that welding procedure and inspection will be in accordance with approved methods for the grade of material used.
Note 1: Grades 1 and 1A have different chemistries but the same mechanical requirements.
Note 2: Designations have been changed as follows:
Current
Formerly
Grade 1
Class 1
Grade 1A
Class 1A
Grade 1C
Class 4
Grade 2 Class 1
Class 2
Grade 2 Class 2
Class 2A
Grade 3 Class 1
Class 3
Grade 3 Class 2
Class 3A
Grade 4N Class 1
Class 7
Grade 4N Class 2
Class 7A
Grade 4N Class 3
Class 7B
Grade 5 Class 1
Class 8
Grade 5 Class 2
Class 8A
Grade 11 Class 4
Class 11C
Grade 22 Class 3
Class 22B
Grade 22 Class 4
Class 22C
Grade 22 Class 5
Class 22D
Grade 22V
Class 22V
Grade 3V
Class 3V
1.3 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standard. Within the text and tables, the SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.4 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound units.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:A541/A541M −05 (Reapproved 2020)
Standard Specification for
Quenched and Tempered Carbon and Alloy Steel Forgings
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for Pressure Vessel Components
This standard is issued under the fixed designationA541/A541M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 1.4 Unless the order specifies the applicable “M” specifica-
2 tion designation, the material shall be furnished to the inch-
1.1 This specification covers requirements for quenched
pound units.
and tempered carbon and alloy steel forgings for pressure
1.5 This international standard was developed in accor-
vessel components.
dance with internationally recognized principles on standard-
1.2 All grades are considered weldable under proper condi-
ization established in the Decision on Principles for the
tions. Welding technique is of fundamental importance, and it
Development of International Standards, Guides and Recom-
ispresupposedthatweldingprocedureandinspectionwillbein
mendations issued by the World Trade Organization Technical
accordance with approved methods for the grade of material
Barriers to Trade (TBT) Committee.
used.
NOTE 1—Grades 1 and 1A have different chemistries but the same
2. Referenced Documents
mechanical requirements.
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2.1 ASTM Standards:
NOTE 2—Designations have been changed as follows:
A275/A275M Practice for Magnetic Particle Examination of
Current Formerly
Steel Forgings
Grade 1 Class 1
A370 Test Methods and Definitions for Mechanical Testing
Grade 1A Class 1A
of Steel Products
Grade 1C Class 4
Grade 2 Class 1 Class 2 A388/A388M Practice for Ultrasonic Examination of Steel
Grade 2 Class 2 Class 2A
Forgings
Grade 3 Class 1 Class 3
A788/A788M Specification for Steel Forgings, General Re-
Grade 3 Class 2 Class 3A
quirements
Grade 4N Class 1 Class 7
Grade 4N Class 2 Class 7A
E208 Test Method for Conducting Drop-Weight Test to
Grade 4N Class 3 Class 7B
Determine Nil-Ductility Transition Temperature of Fer-
Grade 5 Class 1 Class 8
Grade 5 Class 2 Class 8A ritic Steels
Grade 11 Class 4 Class 11C
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2.2 ASME Code:
Grade 22 Class 3 Class 22B
Grade 22 Class 4 Class 22C ASME Boiler and Pressure Vessel Code
Grade 22 Class 5 Class 22D
Grade 22V Class 22V
3. Ordering Information and General Requirements
Grade 3V Class 3V
3.1 In addition to the ordering information required by
1.3 The values stated in either inch-pound units or SI
Specification A788/A788M, the purchaser shall include with
(metric) units are to be regarded separately as standard. Within
the inquiry and order a detailed drawing that locates areas of
the text and tables, the SI units are shown in brackets. The
significant loading in the forging (when required); the method
values stated in each system are not necessarily exact equiva-
of selecting test locations (see 6.2); purchase option (if any) in
lents; therefore, to ensure conformance with the standard, each
accordance with 9.1, and any supplementary requirements
system shall be used independently of the other, and values
desired.
from the two systems shall not be combined.
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This specification is under the jurisdiction ofASTM Committee A01 on Steel,
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Stainless Steel and RelatedAlloys, and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
A01.06 on Steel Forgings and Billets. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved March 1, 2020. Published March 2020. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1965. Last previous edition approved in 2015 as A541/A541M – 05 the ASTM website.
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(2015). DOI: 10.1520/A0541_A0541M–05R20. Available from American Society of Mechanical Engineers (ASME), ASME
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For ASME Boiler and Pressure Vessel Code applications, see related Specifi- International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
cation SA-541/SA-541M in Section II of that Code. www.asme.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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A541/A541M−05 (2020)
3.2 Material supplied to this specification shall conform to
Grade °F [°C]
the requirements of Specification A788/A788M, which out-
1, 1A, 2 Class 2, 3 Class 2 1150 [620]
lines additional ordering information, manufacturing
2, 3 Class 1, 22 Class 3 1200 [650]
requirements, testing and
...
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